Low odor chain transfer agents for controlled radical polymerization

A living polymerization process is one that can produce polymers of predetermind molecular weight and a narrow molecular weight distribution containing one or more monomer sequences, the length and composition of which are controlled by stoichiometry of the polymerization reaction and degree of conversion. One such process is reversible addition-fragmentation-termination (RAFT). While compounds made by RAFT function effectively as chain transfer agents, they share one major disadvantage with the entire class of sulfur-based compounds: a characteristic disagreeable odor.